Knotless Respirator Mask Strap Attachment for Custom Fit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing respirators often require complex knot-tying for strap attachment, which can be cumbersome and time-consuming, and may not allow for easy adjustment or customization.
Innovation Solution
A mask design featuring strap attachments with through-holes and fasteners that allow for knotless attachment and adjustment, using elastic straps and a filter system that overlaps shell openings without obscuring the viewport, ensuring a comfortable and customizable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional knot-tying method is used for strap attachment, then the mask can be securely fastened, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The invention extracts the knot-tying operation from the strap attachment process by introducing a separate fastening mechanism (buckle, snap, or Velcro) that replaces the need for knots. The strap itself is simplified to a straight band without loops or ends that require tying, while the fastening function is transferred to the dedicated attachment component.
Solution Approach 2:
The invention introduces an intermediary fastening component (buckle, snap, or Velcro system) that mediates between the strap and the mask body. This intermediary element provides the secure attachment function previously achieved through knot-tying, while eliminating the complexity of manual knotting operations.
2Reliability
If traditional knot-tying method is used for strap attachment, then the mask can be fastened securely, but the adjustment and customization become difficult
Solution Approach 1:
The invention makes the strap attachment system dynamic by incorporating adjustable fastening mechanisms. The buckle with multiple hole positions, the snap with adjustable spacing, or the Velcro with variable engagement points allows the strap length and tension to be dynamically adjusted to fit different head sizes and preferences, unlike a fixed knot which once tied cannot be easily modified.
Solution Approach 2:
The invention segments the attachment system into modular components: the strap, the fastening mechanism, and the attachment points. This segmentation allows independent adjustment of each component, particularly the fastening mechanism which can be positioned at different locations along the strap to achieve the desired fit and tension.
3Adaptability or versatility
If multiple through-holes are used for strap attachment, then the customization options increase, but the manufacturing precision requirements increase
Solution Approach 1:
The invention makes the strap attachment system universal by providing multiple through-holes that can accommodate different strap configurations and fastening methods. The same set of holes serves multiple functions: securing the strap, allowing length adjustment, and enabling different attachment patterns (e.g., crossed vs. parallel straps). The holes are designed with standardized dimensions and positioning that work with various fastening mechanisms.
Solution Approach 2:
The invention utilizes parameter changes in the through-hole design, including varying hole diameters,椭圆 shapes to accommodate different fastener types, and strategic positioning at different distances from the mask center. These parameter variations allow a single mask design to support multiple strap configurations and adjustment ranges without requiring custom manufacturing for each variant.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy assembly, adjustment, and customization of the mask, enhancing user comfort and effectiveness in filtering inhaled and exhaled air while maintaining a clear view.
Implementation Method 1
the deflectable loop is biased to a relaxed state in which the deflectable loop is able to retain the strap attachment on the shaft
Implementation Method 2
a filter arranged between the inner and outer shells... protecting the respiratory system by filtering out substances such as dust, fumes, bacteria
Data Source
AI summary
A mask may be configured as a respirator. A mask may be relatively easy to manufacture. A mask may be reusable and customizable. A mask may include a strap attachment configured such that a strap is attachable to the strap attachment without tying the strap into a knot.